Your take covers Files PDF, Shortcuts, Mail sizing, and cleaner apps. Try a simpler built-in path.
Use Photos Shared Albums to auto downsize.
- Open Photos, select images. 2) Share, Add to Shared Album, make a temp album. 3) Open the album, Select, Save. iOS saves downsized JPEGs, max 2048 px. Files drop fast. Example, 3.5 MB photo to ~500 KB. Then email or upload. Delete the temp album after.
No ads, no setup, works offline. Saves alot of taps.